25  * tile (but taking care to pass the full frame stride length to
27  * to convert each tile back-to-back when possible (see note below
42  * reusable temporary tile buffer and then rotating with the 8x8
58  * With rotation or flipping, tile order changes between input and
93 /* dimensions of one tile */
103 	/* start Y or packed offset of this tile */
105 	/* offset from start to tile in U plane, for planar formats */
107 	/* offset from start to tile in V plane, for planar formats */
123 	struct ipu_image_tile tile[MAX_TILES];  member
182 	/* next tile to process */
184 	/* where to place converted tile in dest image */
187 	/* mask of completed EOF irqs at every tile conversion */
403  * Also determine the number of tiles necessary to guarantee that no tile
443 	 * we were converting with a single tile. The bottom right output pixel  in calc_image_resize_coefficients()
528 	 * Limit input seam position to make sure that the downsized input tile  in find_best_seam()
563 		 * start the input tile at, 19.13 fixed point.  in find_best_seam()
600  * Tile left edges are required to be aligned to multiples of 8 bytes
612  * Tile top edge alignment is only limited by chroma subsampling.
664  * tiles are in a row, and output tile top position and height are set.
678 		in_tile = &in->tile[tile_idx];  in fill_tile_column()
679 		out_tile = &out->tile[ctx->out_tile_map[tile_idx]];  in fill_tile_column()
697  * tiles are in a column, and output tile left position and width are set.
710 		in_tile = &in->tile[tile_idx];  in fill_tile_row()
711 		out_tile = &out->tile[ctx->out_tile_map[tile_idx]];  in fill_tile_row()
729  * top / left pixels of each tile.
865 		/* Up to 4096x4096 input tile size */  in calc_tile_dimensions()
871 		struct ipu_image_tile *tile;  in calc_tile_dimensions()  local
876 			tile = &image->tile[ctx->out_tile_map[i]];  in calc_tile_dimensions()
878 			tile = &image->tile[i];  in calc_tile_dimensions()
880 		tile->size = ((tile->height * image->fmt->bpp) >> 3) *  in calc_tile_dimensions()
881 			tile->width;  in calc_tile_dimensions()
884 			tile->stride = tile->width;  in calc_tile_dimensions()
885 			tile->rot_stride = tile->height;  in calc_tile_dimensions()
887 			tile->stride =  in calc_tile_dimensions()
888 				(image->fmt->bpp * tile->width) >> 3;  in calc_tile_dimensions()
889 			tile->rot_stride =  in calc_tile_dimensions()
890 				(image->fmt->bpp * tile->height) >> 3;  in calc_tile_dimensions()
898 			tile->width, tile->height, tile->left, tile->top);  in calc_tile_dimensions()
900 		if (!tile->width || tile->width > max_width ||  in calc_tile_dimensions()
901 		    !tile->height || tile->height > max_height) {  in calc_tile_dimensions()
902 			dev_err(priv->ipu->dev, "invalid %s tile size: %ux%u\n",  in calc_tile_dimensions()
904 				"output", tile->width, tile->height);  in calc_tile_dimensions()
913  * Use the rotation transformation to find the tile coordinates
914  * (row, col) of a tile in the destination frame that corresponds
915  * to the given tile coordinates of a source frame. The destination
916  * coordinate is then converted to a tile index.
969  * Fill the out_tile_map[] with transformed destination tile indeces.
974 	unsigned int row, col, tile = 0;  in calc_out_tile_map()  local
978 			ctx->out_tile_map[tile] =  in calc_out_tile_map()
980 			tile++;  in calc_out_tile_map()
991 	unsigned int row, col, tile = 0;  in calc_tile_offsets_planar()  local
1009 		top = image->tile[tile].top;  in calc_tile_offsets_planar()
1014 			y_col_off = image->tile[tile].left;  in calc_tile_offsets_planar()
1027 			image->tile[tile].offset = y_off;  in calc_tile_offsets_planar()
1028 			image->tile[tile].u_off = u_off;  in calc_tile_offsets_planar()
1029 			image->tile[tile++].v_off = v_off;  in calc_tile_offsets_planar()
1053 	unsigned int row, col, tile = 0;  in calc_tile_offsets_packed()  local
1062 		row_off = image->tile[tile].top * stride;  in calc_tile_offsets_packed()
1065 			col_off = (image->tile[tile].left * bpp) >> 3;  in calc_tile_offsets_packed()
1069 			image->tile[tile].offset = offset;  in calc_tile_offsets_packed()
1070 			image->tile[tile].u_off = 0;  in calc_tile_offsets_packed()
1071 			image->tile[tile++].v_off = 0;  in calc_tile_offsets_packed()
1101  * Either round to closest for the next tile's first pixel to minimize seams
1103  * avoid sampling beyond the edges of the input image for this tile's last
1119  * Slightly modify resize coefficients per tile to hide the bilinear
1120  * interpolator reset at tile borders, shifting the right / bottom edge
1140 		in_tile = &ctx->in.tile[tile_idx];  in calc_tile_resize_coefficients()
1141 		out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];  in calc_tile_resize_coefficients()
1175 			in_tile = &ctx->in.tile[tile_idx];  in calc_tile_resize_coefficients()
1176 			out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];  in calc_tile_resize_coefficients()
1197 		in_tile = &ctx->in.tile[tile_idx];  in calc_tile_resize_coefficients()
1198 		out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];  in calc_tile_resize_coefficients()
1232 			in_tile = &ctx->in.tile[tile_idx];  in calc_tile_resize_coefficients()
1233 			out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];  in calc_tile_resize_coefficients()
1295 			       unsigned int tile)  in init_idmac_channel()  argument
1305 		tile_idx[0] = ctx->out_tile_map[tile];  in init_idmac_channel()
1308 		tile_idx[0] = tile;  in init_idmac_channel()
1313 		width = image->tile[tile_idx[0]].height;  in init_idmac_channel()
1314 		height = image->tile[tile_idx[0]].width;  in init_idmac_channel()
1315 		stride = image->tile[tile_idx[0]].rot_stride;  in init_idmac_channel()
1320 		width = image->tile[tile_idx[0]].width;  in init_idmac_channel()
1321 		height = image->tile[tile_idx[0]].height;  in init_idmac_channel()
1324 			image->tile[tile_idx[0]].offset;  in init_idmac_channel()
1327 				image->tile[tile_idx[1]].offset;  in init_idmac_channel()
1340 		tile_image.u_offset = image->tile[tile_idx[0]].u_off;  in init_idmac_channel()
1341 		tile_image.v_offset = image->tile[tile_idx[0]].v_off;  in init_idmac_channel()
1380 static int convert_start(struct ipu_image_convert_run *run, unsigned int tile)  in convert_start()  argument
1387 	unsigned int dst_tile = ctx->out_tile_map[tile];  in convert_start()
1393 	dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p tile %u -> %u\n",  in convert_start()
1394 		__func__, chan->ic_task, ctx, run, tile, dst_tile);  in convert_start()
1401 		dest_width = d_image->tile[dst_tile].height;  in convert_start()
1402 		dest_height = d_image->tile[dst_tile].width;  in convert_start()
1404 		dest_width = d_image->tile[dst_tile].width;  in convert_start()
1405 		dest_height = d_image->tile[dst_tile].height;  in convert_start()
1408 	row = tile / s_image->num_cols;  in convert_start()
1409 	col = tile % s_image->num_cols;  in convert_start()
1417 		__func__, s_image->tile[tile].width,  in convert_start()
1418 		s_image->tile[tile].height, dest_width, dest_height, rsc);  in convert_start()
1422 				   s_image->tile[tile].width,  in convert_start()
1423 				   s_image->tile[tile].height,  in convert_start()
1434 			   IPU_ROTATE_NONE, false, tile);  in convert_start()
1439 				   IPU_ROTATE_NONE, true, tile);  in convert_start()
1443 				   ctx->rot_mode, true, tile);  in convert_start()
1447 				   IPU_ROTATE_NONE, false, tile);  in convert_start()
1454 				   ctx->rot_mode, false, tile);  in convert_start()
1624 	    ctx->in.tile[cur_tile].width != ctx->in.tile[next_tile].width ||  in ic_settings_changed()
1625 	    ctx->in.tile[cur_tile].height != ctx->in.tile[next_tile].height ||  in ic_settings_changed()
1626 	    ctx->out.tile[cur_tile].width != ctx->out.tile[next_tile].width ||  in ic_settings_changed()
1627 	    ctx->out.tile[cur_tile].height != ctx->out.tile[next_tile].height)  in ic_settings_changed()
1673 	 * not done, place the next tile buffers.  in do_tile_complete()
1680 			src_tile = &s_image->tile[ctx->next_tile];  in do_tile_complete()
1682 			dst_tile = &d_image->tile[dst_idx];  in do_tile_complete()
1704 		src_tile = &s_image->tile[ctx->next_tile + 1];  in do_tile_complete()
1706 		dst_tile = &d_image->tile[dst_idx];  in do_tile_complete()
1719 	ctx->eof_mask = 0; /* clear EOF irq mask for next tile */  in do_tile_complete()
2175 	 * only one tile (the whole image can be converted in a single  in ipu_image_convert_prepare()
2179 	 * for every tile, and therefore would have to be updated for  in ipu_image_convert_prepare()
2183 	 * sized tiles or different resizing coefficients per tile  in ipu_image_convert_prepare()
2190 		if (ctx->in.tile[i].width != ctx->in.tile[0].width ||  in ipu_image_convert_prepare()
2191 		    ctx->in.tile[i].height != ctx->in.tile[0].height ||  in ipu_image_convert_prepare()
2192 		    ctx->out.tile[i].width != ctx->out.tile[0].width ||  in ipu_image_convert_prepare()
2193 		    ctx->out.tile[i].height != ctx->out.tile[0].height) {  in ipu_image_convert_prepare()
2212 		unsigned long intermediate_size = d_image->tile[0].size;  in ipu_image_convert_prepare()
2215 			if (d_image->tile[i].size > intermediate_size)  in ipu_image_convert_prepare()
2216 				intermediate_size = d_image->tile[i].size;  in ipu_image_convert_prepare()